Vertical boiler.



No. 632,283. Patented Sept. 5, I899.

- J. B'. SCRANTUN.

VERTICAL BOILER.

(Application filed Feb. 12, 1897.)

(No Model.)

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m: NORRIS PETERS co. PHDYO-LITHQ, wasumcrow, 0 c4 UNITED STATES PATENTOFFICE.

JAMES B. SCRANTON, OF NEW HAVEN, CONNECTICUT.

VERTICAL BOILER.

SPECIFICATION forming part of Letters Patent No. 632,283, datedSeptember 5, 1899. Application filed February 12, 1897. Serial No.623,172. (No model.)

To all whom it may concern:

Be it known that I, JAMES B. SORANTON, of the city and county of NewHaven, in the State of Connecticut, have invented a new and usefulImprovement in Vertical Boilers, fully set forth and described in thefollowing specification, taken in connection with the drawings, whichform a part thereof, and in which-- Figure 1 represents a boilerembodying my invention in side elevation, 'partly broken away todisclose the interior; Fig. 2,a horizontal section on line 2 2 of Fig.1; Fig. 3, a detail view of the crown-sheet and end of tubes in verticalsection, and Fig. 4 a detail view of one of the nipples and caps.

In all the figures similar letters of reference represent like parts.

This invention relates to vertical boilers; and it consists in apeculiar arrangement of the vertical tubes, in connection with ports oropenings on a level with the crown-sheet, to permit the ready cleansingof the boiler at the lower part of the tubes, where from the impurity ofthe. water extraneous material is apt to collect and accelerate theburning out of the tubes.

The invention is illustrated in the drawings, wherein- A represents thecylindrical shell of a vertical boiler; B, the fire-box or furnace; C,the ash-pit, and D the cap. The fire-box B and ash-pit C are providedwith the usual doors I) and 0, respectively. Around the fire-box is ajacket E, formed by the shell A and an inner shell 6 and connected withthe interior of the boiler. The inner shell 6 is united at its upperedge to the crown-sheet F, which 6X- tends horizontally over thefire-box B. Extending between the crown-sheet F and the head-piece(shown at G) are a series of vertical tubes H, arranged, as shown incrosssection in Fig. 2, at the meeting-points of two sets of parallellines which cross each other at right angles. The ends of the tubes H(which are open) extend through the crownsheet F and head-piece G, sothat the products of combustion pass from the fire-box B through them tothe cap D and thence to the flue. (Not shown.)

On a level with the crown-sheet F are arranged in the shell A a row ofports or circular openings K-and K, over which are fitted nipples L,riveted to the shell A. The outer ends of the nipples L arescrew-threaded to receive caps M, and packing-rings N fit between theinner faces of the caps M and outer edges of the nipples L to make asteam-tight joint.

The ports K and K are arranged at the ends of lines which pass midwaybetween the rows of vertical tubes, the ports on opposite sides of theboiler alternating with each other, the ports K being on lines whichdivide the spaces or clearances f between the rows of tubes and theports K on lines which divide the clearances f.

By means of the arrangement of the ports and vertical tubes extraneousdeposit may be easily and completely removed from the lower ends of thetube by emptying the boiler, removing the caps M on the nipples L, andinserting the proper instruments.

Having now described my invention, what I claim, and desire to secure byLetters Patent, is

In a boiler, the combination with a crownsheet; of vertical fire-tubesextending through said crown-sheet and arranged therein at themeeting-points of two sets of parallel horizontal lines crossing eachother at right angles; a series of circular ports in the outside of theboiler on a level with said crown-sheet and a port being in line witheach of the clearances between the line of tubes, the ports on oppositesides of the boiler being in line with alternate clearances,andremovable caps adapted to fit over and have a screw connection with eachof said ports, substantially as described.

In witness whereof I have hereunto set my hand, at New Haven, in thecounty of New Haven, State of Connecticut, this 8th day of February,1897.

GEORGE M. ROBINSON, F. PHILIP FARNSWORTH.

